公开(公告)号：US3559161A

公开(公告)日：1971-01-26

申请号：US3559161D

申请日：1968-06-28

Applicant: HONEYWELL INC

Inventor： RAUDSEP ILMAR G

IPC: G01S1/02 ,  G01S3/808 ,  G01S5/24 ,  G01S19/04 ,  G01S19/11 ,  G01S19/17 ,  G01S19/40 ,  G01S19/46 ,  G01S3/00 ,  G01S5/18

CPC classification number: G01S5/24 ,  G01S1/02 ,  G01S3/808 ,  G01S3/8083 ,  Y10S367/901 ,  Y10S367/907

Abstract: AN ACOUSTIC POSITION FINDING SYSTEM COMPRISING AT LEAST ONE UNDERWATER BEACON, AN ARRAY OF SPACED HYDROPHONES, AND SIGNAL PROCESSING EQUIPMENT. THE BEACON PERIODICALLY TRANSMITS A SIGNAL HAVING PULSE AND WAVE COMPONENTS IN WHICH THE PERIOD OF THE WAVE COMPONENT IS SUBSTANTIALLY

SHORTER THAN THE INTERVAL BETWEEN PULSES. THE PROCESSING EQUIPMENT COMPUTES THE POSITION OF THE ARRAY RELATIVE TO THE BEACON FROM TIME AND PHASE DIFFERENCES IN SIGNALS RECEIVED BY INDIVIDUAL HYDROPHONES IN THE ARRAY.

公开(公告)号：US3602877A

公开(公告)日：1971-08-31

申请号：US3602877D

申请日：1969-01-03

Applicant: HONEYWELL INC

Inventor： CURRIE WILLIAM E ,  RAUDSEP ILMAR G

IPC: G01S3/805 ,  G01S5/28

CPC classification number: G01S3/805 ,  G01S5/28

Abstract: Apparatus for determining and displaying the angular position of a water craft relative to a fixed underwater location, and a method for determining distances therebetween if the depth of the fixed location is known. The apparatus comprises a directional receiver and circuitry on the water craft for determining the azimuth and depression angle of a sonar source at the fixed location relative to the water craft, and means for displaying these angles independently on a polar coordinate system.

公开(公告)号：US3673555A

公开(公告)日：1972-06-27

申请号：US3673555D

申请日：1970-10-23

Applicant: HONEYWELL INC

Inventor： RAUDSEP ILMAR G

IPC: G01S3/801 ,  H04B11/00

CPC classification number: G01S3/801

Abstract: An underwater beacon for transmitting an acoustic signal characterized so as to facilitate accurate determination of the position of an acoustic receiver array relative to the beacon. The beacon comprises a pair of oscillators whose output signals are supplied to a modulator which is further controlled by a timer so as to produce a periodic modulated carrier frequency signal, each period of which is made up of predetermined intervals of unmodulated carrier, modulated carrier, and silence. The output of the modulator is supplied to a driver which energizes an acoustic projector.

Abstract translation: 用于发送声信号的水下信标，其特征在于有助于准确地确定声接收机阵列相对于信标的位置。 信标包括一对振荡器，其输出信号被提供给调制器，调制器进一步由定时器控制，以产生周期性调制的载波频率信号，每个周期由预定的未调制载波，调制载波， 和沉默。 调制器的输出被提供给激励声学投影仪的驱动器。

公开(公告)号：US3559171A

公开(公告)日：1971-01-26

申请号：US3559171D

申请日：1967-07-24

Applicant: HONEYWELL INC

Inventor： RAUDSEP ILMAR G ,  CLAPHAM ROBERT G

IPC: G01S1/72 ,  G01S3/14 ,  G01S3/808 ,  H04Q5/00

CPC classification number: G01S3/808 ,  G01S1/72 ,  G01S3/14

Abstract: APPARATUS AND METHOD FOR MINIMIZING THE EFFEFT OF SIGNAL TRANSMISSION VARIATIONS CAUSED BY VARIATIONS IN A PLURALITY OF PARALLEL IDEALLY IDENTICAL SIGNAL PROCESSING CHANNELS. THE APPARATUS COMPRISES MEANS FOR PERIODICALLY SWITCHING THE SIGNAL BETWEEN DIFFERENT CHANNELS SO THAT IT IS PROCESSED BY EACH CHANNEL FOR EQUAL PERIODS OF TIME.